The Green Party has congratulated new Labour leader David Cunliffe and says it looks forward to continuing the good relationship between the two parties.
Co-leader Metiria Turei said she is confident the parties can work together and talk honestly about some of the more difficult issues.
She said they both have a goal of getting rid of the government.
Ms Turei said Mr Cunliffe has been open to talking with the Greens about what a smart, green, compassionate society can look like.